Which of the following statements is/are correct with respect to Thomson's model of an atom?
I. Electrons are embedded in the positively charged sphere.
II. The negative and positive charges are equal in magnitude.
III. Nucleus contains protons and neutrons in it.

All I, II and III

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Only I and II

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Only III

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Only I

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Solution

The correct option is B Only I and II
According to Thomson's model of an atom:

An atom consists of a positively charged sphere and the electrons are embedded in it.

The negative and positive charges are equal in magnitude. So, the atom as a whole is electrically neutral.

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Similar questions

State whether the following statements are true or false :

(a) Thomson proposed that the nucleus of an atom contains protons and neutrons.

(b) The cathode rays obtained from all the gases consist of negatively charged particles called electrons.

Rutherford’s α–particle scattering experiment showed that

(i) electrons have a negative charge

(ii) the mass and positive charge of the atom are concentrated in the nucleus

(iii) neutron exists in the nucleus

(iv) most of the space in an atom is empty. Which of the above statements are correct?

In the Thomson’s model of atom, which of the following statements are correct?

(i) the mass of the atom is assumed to be uniformly distributed over the atom.

(ii) the positive charge is assumed to be uniformly distributed over the atom.

(iii) the electrons are uniformly distributed in the positively charged sphere.

(iv) the electrons attract each other to stabilize the atom.

According to J.J Thomson, an atom is a positively charged sphere. Which sub atomic particles are embedded in it?

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